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Reland "[WebAssembly] Expand setcc of v2i64"

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This reverts commit e5cae5692b5899631b5bfe5c23234deb5efda10c, which
reverted 11850a6305c5778b180243eb06aefe86762dd4ce. The original revert
was done because of breakage that was actually in a separate commit,
2ab1b8c1ec452fb743f6cc5051e75a01039cabfe, which was also reverted and
has since been fixed and relanded.
This commit is contained in:
Thomas Lively 2019-11-01 10:21:00 -07:00
parent 2dfebb66fc
commit f17a691494
3 changed files with 181 additions and 0 deletions
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30
lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
View File

@ -189,6 +189,11 @@ WebAssemblyTargetLowering::WebAssemblyTargetLowering(
setOperationAction(Op, MVT::v2f64, Expand);
}
// Expand operations not supported for i64x2 vectors
if (Subtarget->hasUnimplementedSIMD128())
for (unsigned CC = 0; CC < ISD::SETCC_INVALID; ++CC)
setCondCodeAction(static_cast<ISD::CondCode>(CC), MVT::v2i64, Custom);
// Expand additional SIMD ops that V8 hasn't implemented yet
if (!Subtarget->hasUnimplementedSIMD128()) {
setOperationAction(ISD::FSQRT, MVT::v4f32, Expand);
@ -1014,6 +1019,8 @@ SDValue WebAssemblyTargetLowering::LowerOperation(SDValue Op,
return LowerBUILD_VECTOR(Op, DAG);
case ISD::VECTOR_SHUFFLE:
return LowerVECTOR_SHUFFLE(Op, DAG);
case ISD::SETCC:
return LowerSETCC(Op, DAG);
case ISD::SHL:
case ISD::SRA:
case ISD::SRL:
@ -1479,6 +1486,29 @@ WebAssemblyTargetLowering::LowerVECTOR_SHUFFLE(SDValue Op,
return DAG.getNode(WebAssemblyISD::SHUFFLE, DL, Op.getValueType(), Ops);
}
SDValue WebAssemblyTargetLowering::LowerSETCC(SDValue Op,
SelectionDAG &DAG) const {
SDLoc DL(Op);
// The legalizer does not know how to expand the comparison modes of i64x2
// vectors because no comparison modes are supported. We could solve this by
// expanding all i64x2 SETCC nodes, but that seems to expand f64x2 SETCC nodes
// (which return i64x2 results) as well. So instead we manually unroll i64x2
// comparisons here.
assert(Subtarget->hasUnimplementedSIMD128());
assert(Op->getOperand(0)->getSimpleValueType(0) == MVT::v2i64);
SmallVector<SDValue, 2> LHS, RHS;
DAG.ExtractVectorElements(Op->getOperand(0), LHS);
DAG.ExtractVectorElements(Op->getOperand(1), RHS);
const SDValue &CC = Op->getOperand(2);
auto MakeLane = [&](unsigned I) {
return DAG.getNode(ISD::SELECT_CC, DL, MVT::i64, LHS[I], RHS[I],
DAG.getConstant(uint64_t(-1), DL, MVT::i64),
DAG.getConstant(uint64_t(0), DL, MVT::i64), CC);
};
return DAG.getBuildVector(Op->getValueType(0), DL,
{MakeLane(0), MakeLane(1)});
}
SDValue
WebAssemblyTargetLowering::LowerAccessVectorElement(SDValue Op,
SelectionDAG &DAG) const {

1
lib/Target/WebAssembly/WebAssemblyISelLowering.h
View File

@ -116,6 +116,7 @@ private:
SDValue LowerSIGN_EXTEND_INREG(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerAccessVectorElement(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerShift(SDValue Op, SelectionDAG &DAG) const;
};

150
test/CodeGen/WebAssembly/simd-comparisons.ll
View File

@ -637,6 +637,156 @@ define <4 x i32> @compare_sext_uge_v4i32 (<4 x i32> %x, <4 x i32> %y) {
ret <4 x i32> %res
}
; CHECK-LABEL: compare_eq_v2i64:
; SIMD128-NEXT: .functype compare_eq_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_eq_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp eq <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_eq_v2i64:
; SIMD128-NEXT: .functype compare_sext_eq_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_eq_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp eq <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_ne_v2i64:
; SIMD128-NEXT: .functype compare_ne_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_ne_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp ne <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_ne_v2i64:
; SIMD128-NEXT: .functype compare_sext_ne_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_ne_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp ne <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_slt_v2i64:
; SIMD128-NEXT: .functype compare_slt_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_slt_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp slt <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_slt_v2i64:
; SIMD128-NEXT: .functype compare_sext_slt_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_slt_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp slt <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_ult_v2i64:
; SIMD128-NEXT: .functype compare_ult_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_ult_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp ult <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_ult_v2i64:
; SIMD128-NEXT: .functype compare_sext_ult_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_ult_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp ult <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_sle_v2i64:
; SIMD128-NEXT: .functype compare_sle_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_sle_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp sle <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_sle_v2i64:
; SIMD128-NEXT: .functype compare_sext_sle_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_sle_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp sle <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_ule_v2i64:
; SIMD128-NEXT: .functype compare_ule_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_ule_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp ule <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_ule_v2i64:
; SIMD128-NEXT: .functype compare_sext_ule_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_ule_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp ule <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_sgt_v2i64:
; SIMD128-NEXT: .functype compare_sgt_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_sgt_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp sgt <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_sgt_v2i64:
; SIMD128-NEXT: .functype compare_sext_sgt_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_sgt_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp sgt <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_ugt_v2i64:
; SIMD128-NEXT: .functype compare_ugt_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_ugt_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp ugt <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_ugt_v2i64:
; SIMD128-NEXT: .functype compare_sext_ugt_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_ugt_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp ugt <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_sge_v2i64:
; SIMD128-NEXT: .functype compare_sge_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_sge_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp sge <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_sge_v2i64:
; SIMD128-NEXT: .functype compare_sext_sge_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_sge_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp sge <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_uge_v2i64:
; SIMD128-NEXT: .functype compare_uge_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i1> @compare_uge_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%res = icmp uge <2 x i64> %x, %y
ret <2 x i1> %res
}
; CHECK-LABEL: compare_sext_uge_v2i64:
; SIMD128-NEXT: .functype compare_sext_uge_v2i64 (v128, v128) -> (v128){{$}}
define <2 x i64> @compare_sext_uge_v2i64 (<2 x i64> %x, <2 x i64> %y) {
%cmp = icmp uge <2 x i64> %x, %y
%res = sext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %res
}
; CHECK-LABEL: compare_oeq_v4f32:
; NO-SIMD128-NOT: f32x4
; SIMD128-NEXT: .functype compare_oeq_v4f32 (v128, v128) -> (v128){{$}}